Blow line addition of isocyanate binder in fiberboard...

Details Blow line addition of isocyanate binder in fiberboard... Blow line addition of isocyanate binder in fiberboard...

B - Operations, Transporting

27

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18/1011

B27N 3/10 (2006.01) B27N 1/00 (2006.01) B27N 3/00 (2006.01) C08G 18/64 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1174422

B 1103 12/21/82 BLOW LINE ADDITION OF ISOCYANATE BINDER IN FIBERBOARD MANUFACTURE Abstract A method for producing a synthetic board from cellulosic and/or lignocellulosic materials wherein a polyisocyanate binder is applied to the hot and wet fibrous material in the blow line out of the refiner of the board forming process. Polyphenylpolyisocyanates, such as a mixture of diphenylmethane-4,4'-diisocyanate and polymethylene poly- phenyl polyisocyanates, are a particularly suitable binder.

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